GB/T3091 equivalent round black spiral welded steel pipe

Outside diameter

159mm-3620mm

Wall thickness

6mm~30mm

Length

12m,11.8m,5.8m,6m,or as random

Seam

SAW(Spiral welded),SSAW(Spiral submerged-arc welded),HSAW,(Helical Submerged Arc

Welded)

Surface

Black painted,Galvanized,Varnish,anti-rust oiled,anti-rustarnished,etc

Price term

Ex-Work,FOB,CNF,CFR,CIF

Payment term

TT,L/C,etc

MOQ

 50 tons

Package

standard export package,or as required

Tolerance

Tolerance of OD:(OD<508mm): +/- 0.75% or +/- 2.5mm(minimum value first);

                    (OD>=508mm): +/- 0.5% or +/- 4.5mm(minimum value first)

Tolerance of thickness: (OD>=508mm): +/-10%;

                                 (OD<508mm): +/-12.5%

Application

Mainly used in water engineering,petrochemical industry ,chemical industry,power industry,agricultural

 irrigation, urban construction.

For liquid transportation:water supply,water drainage,sewage treatment engineering,transmission 

mud,sea water

For gas transmission:coal gas,vapour,liquefied petroleum gas

For construction :as piling tube ,as bridge;dock,road,building structure pipe, marine piling tube

Contact 

If you have any question ,please feel free to contact me .

Skype ID:jackytdr wu